Apparatus for generating and radiating ultrasonic energy
US4537511A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1984 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Mar 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K13/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing and radiating ultrasonic energy in fluids, in particular for irradiating cleaning baths, having an ultrasonic generator and a converter or transducer associated therewith, is improved with respect of its mode to operation and efficiency by a resonator being immersed in the fluid and the fluid being irradiated by radial components which are produced in the expansion nodes of longitudinal waves of the resonator. A corresponding apparatus with an ultrasonic generator, in accordance with the invention, has a resonator (1) which is connected to a sound transducer (9) towards the fluid or the bath (7) and which is tuned in its longitudinal axis (M) to an integral multiple of the acoustic operating half-wave length.lambda./2, to produce transverse compressions at the expansion nodes thereof. The resonator (1) is preferably in the form of a hollow profile of round cross-section and may possibly also contain further resonators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.